CVE-2025-62358Public exploitNetwork attack vector

Session hijacking via unescaped log parameter

Published Oct 13, 2025 · Updated Oct 13, 2025

Reflected XSS in WeGIA before 3.5.1 allows remote attackers to execute JavaScript in a victim's browser through the log parameter. The configuration page passes the base64-decoded log value to its message renderer without HTML neutralization, placing attacker-controlled script in the response. Opening the crafted URL is required; a logged-in victim whose PHPSESSID cookie lacks HttpOnly and Secure flags can have the cookie stolen and reused to hijack the session.

CVSS severity5.4
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in WeGIA before 3.5.1 allows remote attackers to execute JavaScript in a victim's browser through the log parameter. The configuration page passes the base64-decoded log value to its message renderer without HTML neutralization, placing attacker-controlled script in the response. Opening the crafted URL is required; a logged-in victim whose PHPSESSID cookie lacks HttpOnly and Secure flags can have the cookie stolen and reused to hijack the session.

The record

CVE
CVE-2025-62358
Published
Oct 13, 2025
Updated
Oct 13, 2025
Vendor
LabReDeS - Laboratório de Redes, Desenvolvimento e Segurança
Product
WeGIA
Classifications
CWE-79, T1550.004, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LabReDeS - Laboratório de Redes, Desenvolvimento e Segurança · WeGIAversion=< 3.5.1

Published CVSS scores

5.4GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
8.8LabRedesCefetRJ WeGIA Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1550.004Use Alternate Authentication Material: Web Session Cookie
T1539Steal Web Session Cookie

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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